Potential of NdCeCuO thin films for electronic applications

Films of NdCeCuO with high crystalline quality (channeling yield of 6%) were deposited on the low-loss material LaAlO/sub 3/, making it possible to measure the microwave surface losses at 18.29 GHz. An encouraging value of 1 m Omega was found at 4.2 K. The T/sub c/ is still lower than on SrTiO/sub 3...

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Veröffentlicht in:	IEEE transactions on applied superconductivity 1993-03, Vol.3 (1), p.1550-1551
Hauptverfasser:	Kussmaul, A., Tedrow, P.M., Gupta, A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Annealing Condensed matter: electronic structure, electrical, magnetic, and optical properties Exact sciences and technology Laser ablation Low tc films Physics Substrates Superconducting epitaxial layers Superconducting films Superconducting films and low-dimensional structures Superconducting magnets Superconducting microwave devices Superconducting thin films Superconductivity Transistors Yttrium barium copper oxide
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Beschreibung
Zusammenfassung:	Films of NdCeCuO with high crystalline quality (channeling yield of 6%) were deposited on the low-loss material LaAlO/sub 3/, making it possible to measure the microwave surface losses at 18.29 GHz. An encouraging value of 1 m Omega was found at 4.2 K. The T/sub c/ is still lower than on SrTiO/sub 3/, but this is attributed to the fact that the deposition parameters have not yet been explored as systematically as for SrTiO/sub 3/. The deposition on artificial SrTiO/sub 3/ bicrystals yields grain boundaries with nonlinear I-V characteristics. The dynamic conductance looks similar to that observed on tunnel junctions of other high-T/sub c/ compounds, suggesting that quasiparticle tunneling is taking place for high-angle grain boundaries.< >
ISSN:	1051-8223 1558-2515
DOI:	10.1109/77.233370